Four wheel chassis for a floor conveyor, a counterweight stacker in particular

a technology of floor conveyors and chassis, applied in the direction of resilient suspensions, transportation items, lifting devices, etc., can solve the problem that the known arrangement cannot be applied just like that to the floor conveyor

Inactive Publication Date: 2009-02-24
JUNGHEINRICH AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This solution provides smooth suspension across all wheels, minimizes pitching and rolling movements, and maintains stability during load handling, while allowing for adaptive damping to match operational conditions, thereby enhancing the overall driving experience and load management.

Problems solved by technology

Because of the quickly changing axle loads and the turnover stability which is therefore required, this known arrangement can not be applied just like that to floor conveyors.

Method used

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  • Four wheel chassis for a floor conveyor, a counterweight stacker in particular
  • Four wheel chassis for a floor conveyor, a counterweight stacker in particular

Examples

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Embodiment Construction

[0020]While this invention may be embodied in many different forms, there are described in detail herein a specific preferred embodiment of the invention. This description is an exemplification of the principles of the invention and is not intended to limit the invention to the particular embodiment illustrated

[0021]In FIG. 1, two axles 10, 12 can be recognised, which bear one wheel 14 on each of their ends. In the example, 10 is the front axle of a counterweight stacker and corresponding to this, 12 is the rear axle. In this case, the front wheels 14 are usually driven and the rear axle is oscillatingly suspended. The front axle 10 is supported on the not shown frame of the floor conveyor with the aid of two double-acting hydraulic cylinders Z1 and Z2. The rear axle 12 is supported on the frame with the aid of the double-acting hydraulic cylinders Z3 and Z4. The rod-end chambers of the hydraulic cylinders Z1 and Z2 are crosswise connected with the rod-end chambers of the hydraulic ...

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PUM

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Abstract

A four wheel chassis for a floor conveyor, a counterweight stacker in particular, in which the ends of the front and rear axle or the wheels, respectively, are supported with respect to the vehicle frame via double-acting hydraulic cylinders, which on their turn co-operate with hydraulic accumulators and constitute a hydraulic chassis system, wherein first controllable on-off valves separate the hydraulic accumulators from the hydraulic cylinders at option, and wherein a hydraulic lifting equipment for a load supporting means is provided, wherein a hydraulic system for the lifting equipment co-operates with the hydraulic chassis system via a pressure intensifier, and the pressure in the chassis system and with this a compression movement is changed as a function of the taken-up load.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]Not applicable.STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH[0002]Not applicable.BACKGROUND OF THE INVENTION[0003]Conventionally, four wheel floor conveyors, like counterweight stackers for instance, have two not suspended axles in order to ensure good stability. A suspending effect is mostly achieved only through the tyres, so that the driving smoothness and the driving behaviour are moderate, because the vehicle tends to jump.[0004]From EP 1 162 092 A2, the entire contents of which is hereby incorporated by reference in its entirety, it is known to suspend the rear axle of a counterweight stacker in a suspended manner. From DE 1 580 793, the entire contents of which is hereby incorporated by reference in its entirety, it has become known for off-road vehicles and special vehicles for the transportation of heavy and bulky goods to support the front axle as well as the rear axle of the vehicle or the wheels belonging thereto, respectiv...

Claims

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Application Information

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Patent Type & AuthorityPatents(United States)
IPC IPC(8): B60G17/00B60G17/017
CPCB60G17/056B66F9/22B60G2300/022B60G2400/60
InventorSCHRODER, HENRIK
OwnerJUNGHEINRICH AG